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Q. No.Given below are two statements:
| Assertion (A): | It is hotter at the top of a flame than at the sides. |
| Reason (R): | Heat propagates through convection in the upward direction. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Convection |
88%
Level 1: 80%+
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Gravitational force is required for:
1. Stirring of liquid
2. Convection
3. Conduction
4. Radiation
1. Stirring of liquid
2. Convection
3. Conduction
4. Radiation
Subtopic: Convection |
88%
Level 1: 80%+
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Given below are two statements:
| Assertion (A): | In the human body, uniformity of temperature is maintained by facilitating heat transfer by forced convection. |
| Reason (R): | Heat from metabolic reactions is carried from the hotter parts to the colder parts by circulating blood, pumped by the heart. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Convection |
78%
Level 2: 60%+
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Q. No.
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